My use of Snakebites lasted nearly 7 years. I use them under clothes, under Noogleberry, and alternately with massage and topicals.  My results are measurable going from 3/4 inch areola to 3 1/4 inches. The most noticeable detail is the engorged nipples I achieved. My nipples are standing up most of the time now. Another key element is the low cost of Snakebites compared to other suction devices like Noogleberry.